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<title>Data/Text/ICU/Collate/Internal.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable, EmptyDataDecls, ForeignFunctionInterface #-}</span>
<a name="line-2"></a><span class='hs-comment'>-- |</span>
<a name="line-3"></a><span class='hs-comment'>-- Module : Data.Text.ICU.Collate.Internal</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) 2010 Bryan O'Sullivan</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- License : BSD-style</span>
<a name="line-7"></a><span class='hs-comment'>-- Maintainer : bos@serpentine.com</span>
<a name="line-8"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-9"></a><span class='hs-comment'>-- Portability : GHC</span>
<a name="line-10"></a><span class='hs-comment'>--</span>
<a name="line-11"></a><span class='hs-comment'>-- Internals of the string collation infrastructure.</span>
<a name="line-12"></a>
<a name="line-13"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>ICU</span><span class='hs-varop'>.</span><span class='hs-conid'>Collate</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span>
<a name="line-14"></a> <span class='hs-layout'>(</span>
<a name="line-15"></a> <span class='hs-comment'>-- * Unicode collation API</span>
<a name="line-16"></a> <span class='hs-conid'>MCollator</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-17"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Collator</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-18"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>UCollator</span>
<a name="line-19"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>withCollator</span>
<a name="line-20"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>wrap</span>
<a name="line-21"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-22"></a>
<a name="line-23"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Typeable</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>ForeignPtr</span> <span class='hs-layout'>(</span><span class='hs-conid'>ForeignPtr</span><span class='hs-layout'>,</span> <span class='hs-varid'>newForeignPtr</span><span class='hs-layout'>,</span> <span class='hs-varid'>withForeignPtr</span><span class='hs-layout'>)</span>
<a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunPtr</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ptr</span><span class='hs-layout'>)</span>
<a name="line-26"></a>
<a name="line-27"></a><span class='hs-comment'>-- $api</span>
<a name="line-28"></a><span class='hs-comment'>--</span>
<a name="line-29"></a>
<a name="line-30"></a><a name="UCollator"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>UCollator</span>
<a name="line-31"></a>
<a name="line-32"></a><a name="MCollator"></a><span class='hs-comment'>-- | String collator type.</span>
<a name="line-33"></a><a name="MCollator"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>MCollator</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MCollator</span> <span class='hs-comment'>{-# UNPACK #-}</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>ForeignPtr</span> <span class='hs-conid'>UCollator</span><span class='hs-layout'>)</span>
<a name="line-34"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-35"></a>
<a name="line-36"></a><a name="Collator"></a><span class='hs-comment'>-- | String collator type. 'Collator's are considered equal if they</span>
<a name="line-37"></a><a name="Collator"></a><span class='hs-comment'>-- will sort strings identically.</span>
<a name="line-38"></a><a name="Collator"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>Collator</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>C</span> <span class='hs-conid'>MCollator</span>
<a name="line-39"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-40"></a>
<a name="line-41"></a><a name="withCollator"></a><span class='hs-definition'>withCollator</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MCollator</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>UCollator</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-42"></a><span class='hs-definition'>withCollator</span> <span class='hs-layout'>(</span><span class='hs-conid'>MCollator</span> <span class='hs-varid'>col</span><span class='hs-layout'>)</span> <span class='hs-varid'>action</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>col</span> <span class='hs-varid'>action</span>
<a name="line-43"></a><span class='hs-comment'>{-# INLINE withCollator #-}</span>
<a name="line-44"></a>
<a name="line-45"></a><a name="wrap"></a><span class='hs-definition'>wrap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>UCollator</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>MCollator</span>
<a name="line-46"></a><span class='hs-definition'>wrap</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-conid'>MCollator</span> <span class='hs-varop'>.</span> <span class='hs-varid'>newForeignPtr</span> <span class='hs-varid'>ucol_close</span>
<a name="line-47"></a><span class='hs-comment'>{-# INLINE wrap #-}</span>
<a name="line-48"></a>
<a name="line-49"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"hs_text_icu.h &__hs_ucol_close"</span> <span class='hs-varid'>ucol_close</span>
<a name="line-50"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FunPtr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>UCollator</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
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